CVE-2026-28741

CVSS Score & Metrics

Base Score

6.8 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N                                    

Vulnerability Description

Mattermost versions 10.11.x <= 10.11.12, 11.5.x <= 11.5.0, 11.4.x <= 11.4.2, 11.3.x <= 11.3.2 fail to validate CSRF tokens on an authentication endpoint which allows an attacker to update a user's authentication method via a CSRF attack by tricking a user into visiting a malicious page. Mattermost Advisory ID: MMSA-2026-00625

Vulnerability Details

Published Date

April 15, 2026

Last Modified

April 15, 2026

CWE ID

CWE-352

Source

NVD

Vendor

Mattermost

Product

Mattermost

External References

https://mattermost.com/security-updates

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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